extract and purify

PurposeTo extract and purify chondroitin sulfate ( chs ) from pig cartilage.

目的从猪鼻软骨中提纯硫酸 软骨素.

Objective: To extract and purify low molecular weight immuno-active earthworm peptides, and to study its effects on the activity of NK cells in vitro.

目的：提取低分子量免疫活性地龙肽，并就其对NK细胞活性的影响进行体外研究。

Objective: To isolate and purify the polysaccharide from the soluble preliminary extract of fructus of Citri medica ( FCM) and analyze the chemical composition of the FCM polysaccharide.

目的：分离与纯化广佛手中提取到的水溶性粗多糖，并分析其相关化学成分。

Methods Alkaline lysis assay was used to extract and purify the plasmid. Plasmid DNA was injected into tumor by microinjection assay.

方法：碱裂解法提取纯化质粒DNA，微量注射法直接将质粒DNA导入体内肿瘤；

To extract and purify recombined adenovirus DNA from culture medium, the medium was transferred into a dialysis bag when extensive cell death was observed.

从重组腺病毒转染人胚肾细胞的培养液中提取及纯化病毒DNA。